Developing an integrated scobit-based activity participation and time allocation model to explore influence of childcare on women’s time use behaviour
Developing an integrated scobit-based activity participation and time allocation model to explore influence of childcare on women’s time use behaviour
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DOI：
10.1007/s11116-011-9321-5
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发表时间：
2011-01
期刊：
影响因子：
4.3
通讯作者：
Junyi Zhang;Lili Xu;A. Fujiwara
中科院分区：
文献类型：
--
作者：
Junyi Zhang;Lili Xu;A. Fujiwara
本文针对育儿对女性时间利用行为的影响，建立了一个活动参与与时间分配的综合模型，前者基于scobit模型，后者基于效用最大化原则下的多线性效用函数。scobit模型与时间分配模型的集成是通过应用李变换来完成的。特别是，采用scobit模型放松的假设，在Logit或Probit模型，即个人有无差别的参与和不参与的偏好是最敏感的解释变量的变化。使用在日本收集的大规模时间使用数据（66,839人），所提出的综合模型的有效性进行了实证验证。结果表明，参与强制性合同活动和自由裁量活动的概率最高的解释变量的变化的敏感性分别为65%和81%。社会育儿变量的方差解释了约一半的时间使用的自主活动的总方差;然而，强制性合同活动，社会育儿变量只解释了不到1%的活动参与的总方差和不到10%的时间分配的总变量。
Focusing on the influence of childcare on women’s time use behaviour, this paper develops an integrated model of activity participation and time allocation, where the former is represented based on a scobit model and the latter based on a multi-linear utility function under the utility-maximizing principle. The integration of the scobit model with the time allocation model is done by applying Lee’s transformation. Especially, the scobit model is adopted to relax the assumption, made in the Logit or Probit model, that individuals having indifferent preferences over participation and non-participation are most sensitive to changes in explanatory variables. Using a large-scale time use data (66,839 persons) collected in Japan, the effectiveness of the proposed integrated model is empirically confirmed. It is revealed that the probabilities of participating in compulsory-contracted activities and discretionary activities with the highest sensitivity to changes in explanatory variables are 65 and 81%, respectively. Variances of social childcare variables explain about half of the total variance of the time use for discretionary activities; however, for compulsory-contracted activities, social childcare variables explain only less than 1% of the total variance of activity participation and less than 10% of total variable of time allocation.